package com.service;

import com.config.WxConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;
import java.util.Set;

@Service
public class FriendService {

    @Autowired
    private WxConfig  wxConfig;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     *
     * @param set1 好友列表1
     * @param set2 好友列表2
     * @return     共同好友
     */
    public Set commonFriends(Set set1, Set set2)
    {
        List list1 = new ArrayList<>(set1);
        List list2 = new ArrayList(set2);

        redisTemplate.delete("s1");
        redisTemplate.delete("s2");
        redisTemplate.boundSetOps("s1").add(list1.toArray());
        redisTemplate.boundSetOps("s2").add(list2.toArray());
        Set result = redisTemplate.opsForSet().intersect("s1","s2"); //交集
        return result;

    }


}
